Acid Rain-SO2

http://www.policyalmanac.org/environment/archive/acid_rain.shtml

"Scientists discovered, and have confirmed, that sulfur dioxide (SO2) and nitrogen oxides (NOx) are the primary causes of acid rain. In the US, About 2/3 of all SO2 and 1/4 of all NOx comes from electric power generation that relies on burning fossil fuels like coal."

"Effects of Acid Rain

Acid rain causes acidification of lakes and streams and contributes to damage of trees at high elevations (for example, red spruce trees above 2,000 feet) and many sensitive forest soils. In addition, acid rain accelerates the decay of building materials and paints, including irreplaceable buildings, statues, and sculptures that are part of our nation's cultural heritage. Prior to falling to the earth, SO2 and NOx gases and their particulate matter derivatives, sulfates and nitrates, contribute to visibility degradation and harm public health."





http://blog.reports-research.com/wp-content/uploads/so2%20emission%20china(1).jpg



http://enrin.grida.no/htmls/bulgaria/soe/em2.gif

	Year	Tons of SO2 emitted	Tons of NOx emitted
1	2000	11,202,078.2	5,104,597.4
2	2001	10,638,086.3	4,707,296.0
3	2002	10,196,209.9	4,474,615.8
4	2003	10,594,972.2	4,169,664.6
5	2004	10,259,212.0	3,763,579.4
6	2005	10,222,639.0	3,633,349.7
7	2006	9,392,502.0	3,409,272.8
8	2007	8,933,514.7	3,283,677.2
9	2008	7,616,249.6	2,996,315.4
10	2009	5,719,840.3	1,977,030.1

Source: United States Environmental Protection Agency, Clean Air Markets, Acid Rain Program Level Emissions Quick Reports
http://camddataandmaps.epa.gov/gdm/index.cfm?fuseaction=emissions.wizard

Year	Number of Registered Vehicles in US
2000	225,821,241
2001	235,331,382
2002	234,624,135
2003	236,760,033
2004	243,010,549
2005	247,421,120
2006	250,844,644
2007	254,403,082
2008	n/a
2009	n/a

Source: US Dept. of Transportation, Bureau of Transportation Statistics Table 1 – 11
http://www.bts.gov/publications/national_transportation_statistics/html/table_01_11.html